Automobile-power jack.



P. c. GRIMM & J. A. VAN slcKLEf AUTOMOBILE POWER JACK.

APPLICATION FILED JULY 14. 1917.

Patented Jan. 8, 1918.

' SEE awn ' IIHILIP 0. Game: AND JAMES A. van SICKLE, or mcomr, wasnm'e'ron.

AUTOMOBILE POWEE JACK.

To all whom itvmay concern Be. it known that" we, PHILIP C. GRIMM and JAMES A. VAN SIGKLE, citizens of the United States, residin at Lincoln, in the county of Lincoln and tate of Washington, have invented certain new and useful Tmprovements in Automobile-Power Jacks, of which the following is a specification.

he present invention relates to an improved automobile power jack, designedesp'ecially for use in furnishing power for saw mills, and other general farming implelnents and machinery.

TlIGPITilllfllY object of the invention is the provision of a comparatively inexpensive, durable, and practical and efficient power transmitting device or jack to be operated by the driving wheels of an automobile and upon which the automobile may be mounted with facility and with equal facility be dismounted therefrom when not needed.

The invention consists essentially in certain novel combinations and arrangements of parts whereby the jack may be tilted to mount or dismount the automobile and whereby the device may be adjusted for automobile wheels of different size.

In the accompanying drawings we have illustrated one complete example of the physical embodiment of our invention constructed and arranged according to the best mode we have so far devised for the practical application of the principles of our invention. i

Figure 1 is a top plan View of a jack embodying our invention.

Fig. 2 is a. side elevation of the jack in operative position.

Fig. 3 is an end view of the device.

Fig. 4 is a side elevation of the jack in position to mount or dismount the automobile.

In the preferred embodiment of the invention an oscillatable frame for supporting the wheels of the automobile is supported on the pair of blocks 1, 1 bearings :2 and 3 being secured to the blocks by bolts 4. The

bloclrs are spaced apart and are spanned by I a pair of shafts 5 and 6 upon which are located the four grooved pulleys or wheels 7, 8, 9, 10, and the shaft 5,-wh1ch is the driving or operating shaft is provided with a Specification of Ietters Patent.

Patented Jan. e, rare.

' Application filed m 14.; 1917. Serial in. 120.5%.

driving pulley '11 over which a belt may pass for conveying power to machinery as described.

The journal bearings 12 for the shafts fashioned at the outer ends of pairs pit oted arms 13, 14, and 15, 16, and coiiars are fixed as by set screws, on. the shaftsito secure the parts against displacement.

The pairs of arms at their inner connect ed ends are formed with perforatedears 18, 19, and through these perforated earsthe pivot pins 2O and 21 are passed, the pins also passing through the bearings 2, 3, so that the entire frame may oscillate on the pins, or the pairs of arms may swing ontne pins if desired. The arms incline upwardiy from the pivot points, and the outer ends of the arms, in pairs, are connected by the sectional adjusting bars 22, and the inner ends of the sections of the bars are connec ed by a turn buckle 23.

Thus, when it is desired to increase or decrease the distance between the two shafts and their wheels the turn buckles may be turned on the threaded ends of the adjusting bars for this purpose, assuming of course that the arms are free to turn on their pivot pms.

The automobile wheel is indicated at 24:, as resting on the twowheels 7 and 8, the shaft 5 of wheel 7 being the driving shaft, and the revolutionsofthe wheel 24, which is in close frictional contact with the grooved pulley wheels, drives the driving I shaft as will be understood.

In order to mount the automobile, the oscillatable frame is turned to position in Fig. i and the car driven up on the frame, the forward wheels of the car being choclecd to hold the automobile steady, and the frame is preferably held in position of 2, while under operation.

What we claim is N 1. The combination in an automobile power jack with supporting biocks and bearings thereon, of parallel sectional arms each having centrai pivoted hinged ioints in the bearings, shafts connecting the ends of 2 arms and operating wheeis on said she. andmeans for holding said sectional an as rigid members.

2. The combination in LIV" ante-moms power jack'with supporting blocks and bearings thereof, of an cscillatable frame comprising parallel sectional arms each having central pivoted hinged joints in the bearings, shafts connecting the free ends of the arms and operating'nfheels 0n the shafts, connecting bars on thfi sectionnl members of arms, for the purpose described.

In testimony whereof we aflix our signa- 10 tures.

PHILIP C. GRIMM. JAMES A. VAN SICKLE. 

